iptables rules for desktop computers

"Today I will show you the iptables rules I set on my main personal computer, with detailed comments about why I came to use these rules after several years of Linux desktop usage. The rules I use now have been simplified as much as I could and are based on common rules and advice that can be found on the network and also on input I got from experienced network administrators. I’ve been using them unmodified for a few years. They are designed for desktop users either directly connected to the Internet or behind a router. They are a bit restrictive in some aspects but we’ll see you can easily create a few holes for specific purposes. So here they are:"

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